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Skylight Installation Cost Calculator
Price a 2026 skylight install by type (fixed / vented / solar / tubular), roof pitch, and new-vs-replace — then line up 3 local roofer or Velux-certified installer quotes.
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What You'll Need
VELUX EDL A06 0000B Skylight Flashing, A06 Low-Profile Shingle Roof Flashing w/Adhesive Underlayment for Deck Mount Skylights
$114.11
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VELUX ECL 3046 0000C Skylight Flashing, 3030/3046 Low-Profile Shingle Roof Flashing w/Adhesive Underlayment for Curb Mount Skylights
$138.62
View on AmazonVELUX ECL 3446 0000C Skylight Flashing, 3446 Low-Profile Shingle Roof Flashing w/Adhesive Underlayment for Curb Mount Skylights
$138.58
View on AmazonVELUX EDL A06 0000B Skylight Flashing, A06 Low-Profile Shingle Roof Flashing w/Adhesive Underlayment for Deck Mount Skylights
$114.11
View on AmazonVELUX ECL 3046 0000C Skylight Flashing, 3030/3046 Low-Profile Shingle Roof Flashing w/Adhesive Underlayment for Curb Mount Skylights
$138.62
View on AmazonVELUX ECL 3446 0000C Skylight Flashing, 3446 Low-Profile Shingle Roof Flashing w/Adhesive Underlayment for Curb Mount Skylights
$138.58
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Price as of Jul 24, 2026. Product prices and availability are accurate as of the date indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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Frequently Asked Questions
QHow much does skylight installation cost in 2026?
National average is $1,800-$1,900 per skylight, with typical range $1,011-$2,808. Fixed skylights run $1,500-$4,000; vented $1,600-$4,700; solar-vented $2,800-$5,700; tubular (sun tunnel) $500-$1,000 installed. Labor alone is 40-60% of the total.
- National average: $1,800-$1,900 per unit
- Fixed: $1,500-$4,000 installed
- Vented: $1,600-$4,700 installed
- Solar-vented: $2,800-$5,700 installed
- Tubular (sun tunnel): $500-$1,000 installed
| Skylight Type | Unit Only | Installed (pitched) | Installed (flat) |
|---|---|---|---|
| Tubular | $150-$500 | $500-$1,000 | $800-$1,400 |
| Fixed | $150-$800 | $1,500-$3,500 | $2,500-$4,500 |
| Vented (manual) | $300-$2,000 | $1,600-$4,000 | $2,800-$4,700 |
| Solar-vented (Velux) | $1,200-$3,500 | $2,800-$5,200 | $3,500-$5,700 |
| Impact-rated | $500-$2,500 | $2,200-$5,000 | $3,200-$6,500 |
QWhat’s the cost difference between fixed, vented, tubular, and solar skylights?
Tubular (sun tunnel) is cheapest at $500-$1,000 installed but delivers only light, no fresh air. Fixed $1,500-$4,000 lights only. Vented $1,600-$4,700 opens for airflow. Solar-vented (Velux Fresh Air) $2,800-$5,700 opens via solar motor AND qualifies for the 30% federal Residential Clean Energy tax credit, which brings net cost close to a standard vented unit.
- Tubular: cheapest, light only, $500-$1,000
- Fixed: lights only, $1,500-$4,000
- Vented manual: opens for airflow, $1,600-$4,700
- Solar-vented: 30% federal tax credit, net ~$3,150 on $4,500 install
- Solar credit: runs through 2032 at 30%
QHow much is labor only to install a skylight?
Labor runs $1,200-$3,200 on average, or 40-60% of the total. Roofers charge $50-$100/hour; a simple in-kind swap needs 4-8 hours. Cutting a brand-new roof opening adds 8-16 hours plus framing, flashing, and interior drywall/shaft work.
- Labor share: 40-60% of total
- Hourly rate: $50-$100/hr
- Replacement (existing opening): 4-8 hours
- New opening: 8-16 hours + framing
- Add interior shaft/drywall: $500-$2,000
QWhy is my skylight quote so high?
Flat roofs cost more than pitched: $1,875-$3,075 flat vs $1,100-$2,065 pitched. Tile, slate, and metal roofs add a specialized-labor premium of $300-$800. Openings wider than the truss spacing require a structural engineer ($100-$500/hour) plus header framing. New openings also require interior shaft construction.
- Flat roof: $1,875-$3,075 vs pitched $1,100-$2,065
- Tile / slate / metal roof: +$300-$800
- Structural engineer: $100-$500/hour
- Header framing: required for wide openings
- Interior shaft: $500-$2,000 (new installs)
QWill a skylight leak? How long do they last?
99% of skylight leaks come from install error, not product failure. Choose a unit with a 10+ year no-leak warranty (Velux, Columbia). Properly installed flashing — base under shingles, step along sides, head overlapping top — outlasts the skylight itself (20-25 years). Annual inspection and clearing debris prevents 80% of future leaks.
- 99% of leaks: install error, not product
- Recommended warranty: 10+ years no-leak
- Flashing lifespan: 20-25 years
- Skip sealant-only installs (top failure mode)
- Ice-and-water shield: essential in snow zones
QIs a Velux solar-powered skylight worth the cost?
Velux Fresh Air solar skylights cost $3,250-$5,150 replaced or $2,800-$5,700 new installed, and qualify for the 30% federal Residential Clean Energy tax credit on BOTH product and installation. Effective net cost on a $4,500 install is ~$3,150 — close to a standard vented unit. Best for rooms with no AC and limited wall-window access.
- Solar-vented install: $2,800-$5,700
- Replacement swap: $3,250-$5,150
- 30% federal tax credit (product + install)
- Net on $4,500: ~$3,150 after credit
- Credit extends through 2032, phases down 2033-2034
Example Calculations
1Fixed skylight replacement on pitched asphalt roof, Midwest
Inputs
Skylight typeFixed
Count1
Roof accessPitched asphalt
RegionMidwest
Result
Typical installed quote$1,500 – $2,500
Unit~$400
Labor (4-6 hrs)~$700
Flashing kit~$200
In-kind replacement on an existing pitched-asphalt opening is the simplest skylight job. Labor dominates at 40-50% of total.
2Velux solar-vented new install, West Coast
Inputs
Skylight typeSolar-vented (Velux Fresh Air)
Count1
Roof accessPitched tile
RegionWest Coast
Result
Typical installed quote$4,500 – $5,700
Unit (solar motor)~$2,400
Tile-labor premium+$500
Shaft / drywall~$1,000
30% federal tax credit–$1,350
After the 30% Residential Clean Energy Credit, net cost drops toward a standard vented unit. Best for rooms without AC.
3Two tubular sun tunnels in a Florida hallway
Inputs
Skylight typeTubular (sun tunnel)
Count2
Roof accessPitched asphalt
RegionSouth / FL
Result
Typical installed quote$1,200 – $2,000
Units~$600
Labor (2 units, 4 hrs each)~$800
Tubular skylights are the cheapest way to light windowless bathrooms and hallways. No structural work required — just roof and ceiling penetrations.
Formulas Used
Skylight cost driver breakdown
Quote = Unit + Labor + Flashing + Shaft + StructuralTypical skylight quote = Unit (30-45%) + Labor (40-60%) + Flashing kit ($100-$400) + Interior shaft/drywall (new installs) + Structural engineering (wide openings). Flat roofs cost 30-50% more than pitched; tile/slate/metal add $300-$800 specialized-labor premium.
Where:
Unit= Fixed $150-$800, vented $300-$2,000, solar-vented $1,200-$3,500, tubular $150-$500Labor= Roofer hours × local rate; 4-8 hrs replacement, 8-16 hrs new openingFlashing= $100-$400 kit — non-negotiable for warranty coverageShaft= Interior framing + drywall for new openings; $500-$2,000Structural= Engineer $100-$500/hr + header framing for wider-than-truss openingsSkylight Installation Costs in 2026: What Buyers Actually Pay
1
What a Skylight Installation Actually Costs in 2026
The headline figure for a standard residential skylight is $1,800-$1,900 installed, with a typical range of $1,011-$2,808 per HomeGuide. That assumes a like-for-like replacement of a fixed or vented skylight into an existing opening on a pitched asphalt roof. Slide any of those inputs and the number moves: tubular sun tunnels at $500-$1,000 are the floor for natural-light installs in small spaces, fixed skylights run $1,500-$4,000 installed, vented manual openers $1,600-$4,700, and Velux Fresh Air solar-vented units $2,800-$5,700 for a new install or $3,250-$5,150 for a replacement.
Roof type is the biggest non-product lever. A flat roof install runs $1,875-$3,075 because the unit needs a curb to lift it above the membrane plus interior drywall work; the same skylight on a pitched asphalt roof comes in at $1,100-$2,065. The table below maps skylight type against both pitched and flat roof installs so you can match your home to the right anchor before collecting bids — anything more than 20-30% above the right cell warrants a second quote.
A few calibration notes for 2026. Velux raised list pricing roughly 8-12% in 2024-2025 and labor inflation has added another 5-8% on top, so any quote you remember from 2022 is $300-$600 stale. The 30% federal Residential Clean Energy Credit on solar-vented units (Velux Fresh Air) and accompanying solar-powered shades runs through 2032 and applies to both product and labor — a $4,500 solar-vented install drops to an effective $3,150 net after the credit, which often makes the solar tier the best value in the lineup.
| Skylight Type | Unit Only | Installed (pitched) | Installed (flat) |
|---|---|---|---|
| Tubular (sun tunnel) | $150-$500 | $500-$1,000 | $800-$1,400 |
| Fixed | $150-$800 | $1,500-$3,500 | $2,500-$4,500 |
| Vented (manual) | $300-$2,000 | $1,600-$4,000 | $2,800-$4,700 |
| Solar-vented (Velux Fresh Air) | $1,200-$3,500 | $2,800-$5,200 | $3,500-$5,700 |
| Impact-rated (hurricane) | $500-$2,500 | $2,200-$5,000 | $3,200-$6,500 |
Skylight pricing has risen 13-20% since 2022 from product MSRP increases and roofer labor inflation. Always anchor against current 2026 ranges, not multi-year-old contractor estimates.
2
Seven Factors That Move Your Skylight Quote
Two skylights of identical type in the same neighborhood can quote $3,000 apart. The biggest spread comes from new-opening vs replacement: cutting a fresh hole in the roof deck, framing a header and trimmers, building an interior shaft, drywall finishing, and flashing the new opening adds 8-16 hours of labor and $500-$2,000 of interior finishing on top of the base unit cost — typically 30-50% more than a like-for-like replacement. If your home already has a skylight that is functional but worn, replacement is dramatically the cheaper path.
Beyond the new-vs-replacement choice, six other variables matter. Skylight type sets the floor and ceiling. Roof pitch and material together can swing labor 20-50% (tile and slate add $300-$800 over asphalt). Wide openings beyond standard truss spacing require a structural engineer at $100-$500 per hour. Labor as a share of bill runs 40-60% on a new opening, less on a swap. And the flashing kit, at $100-$400, is non-negotiable for warranty — 99% of skylight leaks come from install error, not the unit itself.
Use the list below to read each contractor bid critically. Any quote that’s materially missing one of these line items is either rolling it into "labor" or excluding it for now — in which case it surfaces later as a change order. Pair this with the home renovation estimator if you are bundling the skylight with broader remodel work; bundled crews cut 10-20% on combined mobilization.
Always include a 10-15% contingency for hidden decking rot or framing surprises that emerge once the roof opening is exposed. Skipping the contingency is the most common skylight budget blow-up.
- Skylight type: tubular cheapest at $500-$1,000, solar-vented priciest at $2,800-$5,700
- Roof pitch: pitched asphalt $1,100-$2,065, flat roof $1,875-$3,075 (curb + drywall add)
- Roof material: tile, slate, or metal add $300-$800 in specialized labor over asphalt
- Replacement vs new opening: new adds 30-50% (structural framing + interior shaft)
- Structural engineer for wide openings (over truss spacing): $100-$500 per hour
- Labor share of bill: 40-60% on new openings, 25-40% on like-for-like replacement
- Flashing kit: $100-$400 mechanical flashing is non-negotiable for warranty
3
Fixed vs Vented vs Tubular vs Solar: Which Skylight for Your Room
Picking the right skylight type starts with the room and ends with the climate. Tubular sun tunnels at $500-$1,000 installed are the cheapest option and the right choice for small interior spaces — hallways, closets, walk-in pantries, small bathrooms — where you want natural light without sky view or ventilation. Fixed skylights at $1,500-$4,000 deliver the most light for the dollar in stairwells, vaulted living rooms, and great rooms, but they don’t open and contribute no airflow. Vented manual skylights at $1,600-$4,700 add the operable window function essential in kitchens and bathrooms where humidity control matters.
Solar-vented Velux Fresh Air units at $2,800-$5,700 are the value pick for any room without dedicated AC — the solar motor opens the unit on hot days, vents trapped attic air, and integrates with a rain sensor that auto-closes during storms. The 30% federal tax credit on product plus labor brings effective net cost down to roughly $1,960-$3,990, often making solar the cheapest operable option once the credit is applied. Impact-rated hurricane skylights at $2,200-$6,500 are required, not optional, in coastal Florida, NC, SC, and Texas building codes.
Beyond type, brand and warranty matter. Velux dominates US residential with the only no-leak warranty in the industry (10 years on installation if a Velux installer does the work) and a 20-year warranty on the glazing. Columbia, Skywalker, and Sun-Tek round out the category at 10-25% lower price points but with shorter warranties (typically 5-10 years on glazing). For a project worth $2,000-$5,000+ in installed cost, the Velux warranty premium is almost always worth it.
| Scope | Labor Hours | Typical Total |
|---|---|---|
| Like-for-like replacement (existing opening) | 4-8 | $1,200-$2,500 |
| New opening, asphalt roof | 12-20 | $2,500-$4,500 |
| New opening, tile/slate roof | 16-24 | $3,500-$6,500 |
| New opening with structural work | 20-40 | $4,500-$8,000+ |
4
Replacement vs New Opening: The Cost Gap
The biggest single decision in skylight pricing is whether you are replacing into an existing opening or cutting a new one. A like-for-like replacement on an asphalt roof takes 4-8 hours of labor and lands at $1,200-$2,500 installed all-in for a fixed or vented unit — the existing opening is already framed, flashed (usually), and the interior shaft is already built. The new unit drops in, the flashing kit gets installed, and the project is done in a single day with no interior demolition.
A new opening is a different project entirely. The roofer cuts the deck, frames a header and trimmers between rafters or trusses, installs the unit and flashing kit, and then a separate (or the same) crew builds the interior shaft — framing, drywall, taping, and painting — to channel light from the roof opening down to the ceiling. Total labor balloons to 12-40 hours depending on roof material and structural complexity, and the bill stretches to $2,500-$8,000+. Wide openings beyond standard 24-inch truss spacing require a structural engineer ($100-$500 per hour) for header sizing and load calculation — a code requirement, not an option.
The math: if your skylight is functional but worn (gaskets, flashing, or solar motor failing), replacement is 30-50% cheaper than a fresh new install. If you are adding a skylight to a room that doesn’t have one, budget for the higher new-opening figure and don’t let a contractor anchor your expectations against the replacement-only price.
If your existing skylight is over 20 years old and starting to leak, replace before a wood-rot scope creep doubles the project. Routine swap into existing opening: $1,200-$2,500. After unrepaired leaks rot the deck and shaft framing: $4,500-$8,000.
- 1
Confirm the scope
Replacement into existing opening = 4-8 hour install. New opening = full structural cut + interior shaft.
- 2
Inspect the framing
Standard 24" truss spacing fits most stock skylights. Wider openings need a structural engineer.
- 3
Pick the unit
Tubular for small rooms, fixed for max light, vented for bathrooms/kitchens, solar for tax-credit value.
- 4
Order flashing kit by roof type
Asphalt, tile, slate, and metal each have unique flashing kits. Universal flashings are usually a leak source.
- 5
Plan interior shaft (new opening only)
Drywall, paint, and trim usually adds $500-$2,000 on top of roof labor. Confirm in writing.
5
Flashing, Leaks, and the 99% Human-Error Problem
Skylights have a deserved reputation for leaking, but the data tells a different story than most homeowners assume: 99% of skylight leaks come from installation error, not product failure. The $100-$400 flashing kit is not optional, and how a roofer installs it determines whether your skylight stays watertight for 25 years or starts leaking in year three. Manufacturer-engineered flashing kits use a base flashing under the shingles below the unit, step flashing along the sides interleaved with shingle courses, and head flashing that overlaps the top — a mechanical waterproofing system that handles thermal expansion and ice damming.
The most common install mistake is relying on roofing tar or silicone sealant in place of mechanical flashing. Sealants degrade in UV within 5-7 years and crack with thermal cycling, after which water finds the gap and runs down the framing. A second common mistake is skipping ice-and-water shield as a secondary barrier in snow climates — ice dams force water uphill under shingles, and without the membrane the skylight curb is the first leak point. Third is choosing a no-name skylight to save $300; the savings disappear the first time you call about a $2,000 leak repair on a unit with no warranty support.
Match the unit to the right warranty: Velux carries a 10-year no-leak warranty on installations done by Velux 5-Star installers, plus 20 years on glazing. Choose the roof repair cost calculator to estimate any roof work done alongside, since bundling the skylight with a partial reroof often saves both labor and warranty risk — the same crew handles both the roof envelope and the skylight curb in one mobilization.
Insist on a manufacturer-supplied flashing kit specific to your roof material (asphalt, tile, slate, metal). Universal or contractor-fabricated flashings are the leading cause of skylight warranty denials and 5-year leaks.
- 99% of skylight leaks come from install error, not product failure
- Proper flashing: base under shingles below, step along sides, head overlapping top
- Relying on sealants instead of mechanical flashing is the #1 install mistake
- Ice-and-water shield as secondary barrier is essential in snow climates
- Choose a unit with a 10+ year no-leak warranty (Velux 5-Star, Columbia)
- Annual debris clearing around the skylight prevents 80% of future leaks
6
Federal Tax Credit: How Solar Skylights Pay You Back
Velux Fresh Air solar-vented skylights and the matching solar-powered blinds qualify for the 30% federal Residential Clean Energy Credit through 2032, phasing down to 26% in 2033 and 22% in 2034. Critically, the credit applies to both product cost and installation labor — not just hardware. On a $4,500 solar-vented install (unit + labor + flashing + permits), the effective net cost after the credit drops to roughly $3,150, putting solar within striking distance of standard vented pricing.
Claim mechanics are simple: you (or your tax preparer) file IRS Form 5695 with your annual return, listing the total qualified expenditure including labor. There is no upper limit on the credit, no income cap, and no requirement to install on your primary residence — second homes qualify too. The contractor should provide an itemized invoice listing the Velux solar-vented unit, the install labor, and any solar-powered shade or remote control accessories that qualify. Keep the manufacturer’s certification statement and the install invoice with your tax records for the IRS-required documentation window.
The donut below visualizes the typical cost split for a new-opening skylight install: labor at 50%, the unit itself at 32%, flashing and waterproofing at 8%, interior shaft and drywall at 7%, and permits plus structural engineering fees at 3%. When you receive multiple bids, recast each one into these five buckets to spot outliers fast — any quote where labor is materially below 40% of the new-opening total is either rolling hours into the unit price or relying on uninsured crew labor that won’t carry warranty weight if something fails.
A $4,500 Velux Fresh Air solar-vented install drops to roughly $3,150 after the 30% federal credit — frequently making solar cheaper than a manual vented unit at $1,600-$4,700 with no credit.
- 1
Choose a qualifying Velux Fresh Air solar-vented unit
Standard Fresh Air models with solar-powered openers qualify. Manual vented and fixed units do NOT.
- 2
Get itemized installer invoice
Invoice must separately list product, labor, and any solar-powered accessories (shades, remotes).
- 3
Save the manufacturer certification statement
Velux provides a downloadable certification statement on their website for IRS documentation.
- 4
File IRS Form 5695 with your return
Total qualified expenditure goes on Form 5695 line 1; 30% credit flows through to your tax owed.
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Last Updated: Jul 24, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.